MCP112T-315I/LB Microchip Technology, MCP112T-315I/LB Datasheet - Page 11

• Manufacturer Part Number: MCP112T-315I/LB
• Description: Supervisory Circuits Push-Pull Low
• Manufacturer: Microchip Technology

Specifications of MCP112T-315I/LB

• Product Category: Supervisory Circuits
• Rohs: yes
• Number Of Voltages Monitored: 1
• Monitored Voltage: 3.08 V
• Undervoltage Threshold: 3.034 V
• Overvoltage Threshold: 3.126 V
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SC-70-3
• Minimum Operating Temperature: - 40 C
• Factory Pack Quantity: 3000
• Supply Current (typ): 1.75 uA
• Supply Voltage - Min: 1 V

4.0
For many of today’s microcontroller applications, care
must be taken to prevent low-power conditions that can
cause many different system problems. The most
common causes are brown-out conditions, where the
system supply drops below the operating level momen-
tarily. The second most common cause is when a slowly
decaying power supply causes the microcontroller to
begin executing instructions without sufficient voltage to
sustain SRAM, thus producing indeterminate results.
Figure 4-1 shows a typical application circuit.
FIGURE 4-1:
FIGURE 4-2:
 2004 Microchip Technology Inc.
0.1
µF
V
Note 1: R
DD
APPLICATION INFORMATION
MCP11X
due to the open-drain output. Resistor
R
V
V
PU
PU
V
V
DD
OUT
SS
DD
3
is not required with the MCP112.
2
V
may be required with the MCP111
OUT
V
Typical Application Circuit.
V
TRIPMAX
1
V
OUT
TRIPMIN
Operation as Determined by the V
R
PU
1V
Microcontroller
MCLR
(Reset Input)
PICmicro
< 1 V is outside the
GND
device specifications
V
DD
®
V
TRIPAC
+ V
4.1
The voltage trip point (V
edge of V
be between the minimum trip point (V
maximum trip point (V
this trip point to remove any “jitter” that would occur on
the V
Figure 4-2 shows the state of the V
mined by the V
falling V
V
V
HYSAC
OUT
HYS
TRIP
.
OUT
pin will not be driven high until V
DD
pin when the device V
V
and V
DD
voltages. When the V
TRIP
. The actual voltage trip point (V
V
TRIPAC
DD
Operation
HYS
voltage. The V
.
TRIPMAX
MCP111/112
TRIP
) is determined on the falling
). There is a hysteresis on
DD
DD
V
TRIP
TRIPAC
is at the trip point.
voltage is rising, the
specification is for
DS21889B-page 11
OUT
TRIPMIN
DD
pin as deter-
is at V
TRIPAC
) and the
TRIP
) will
+